Or the polls were wrong.
Or the "vote was stolen so let's punish the local Republicans by not voting for them because they didn't protect Trump" crew is bigger than expected.
You can't just say "it's the way I want it or it was cheating." That's the way a spoiled child plays candyland, not the way the world works. There could be cheating, but you have to show the actual cheating, not just say "I thought it would be different, therefore it didn't happen."
And yeah, that works both ways. Wasn't this the conservative stance in 2016?
For the record, I think both Republicans will win, and I think that's probably better for America. That's what I want (although have you looked at those candidates? Not terribly inspiring). But if it doesn't happen, you've got to look at what actually did happen. You can't just decide ahead of time that it was rigged. There is incredible scrutiny on this race (just like there has been on their presidential election). It'll be watched extremely closely by both sides. Should be very secure.